Percutaneous vertebroplasty for patients with osteoporosis: a one-year follow-up.

Abstract

PURPOSE:

To evaluate changes in height and wedge angle of treated vertebral bodies and kyphosis angle 1 year after vertebroplasty.

MATERIAL AND METHODS:

We reviewed radiographs of 95 vertebral bodies treated with vertebroplasty in 60 patients with osteoporosis. Only vertebral bodies with imaging evidence of a new fracture or avascular necrosis received vertebroplasty. Images were obtained for evaluation before vertebroplasty (B), within 2 weeks after vertebroplasty (T), and after 1 year (T1).

RESULTS:

The mean wedge angle decreased by 5.4 degrees from B to T1. Mean of the anterior, central, and posterior heights of the fractured bodies increased by 12.6%, 9.6%, and 3.1%, respectively, from B to T1. The kyphosis angle improved by 3.2 degrees initially from B to T, but the improvement later disappeared. In 48% of these patients, a new fracture developed after vertebroplasty, and 63% of the fractures were adjacent to a vertebroplasty-treated vertebral body.

CONCLUSION:

The increase in height and wedge angle of the vertebral bodies generally lasted at least 1 year. Improvement in kyphosis angles was lost 1 year after vertebroplasty because new fractures occurred in 48% of these patients. Prevention of new fractures after vertebroplasty remains an important task.

• Authors: C Y Chang, M M H Teng, C J Wei, C B Luo, F C Chang
• Journal: Acta radiologica (Stockholm, Sweden : 1987) (Acta Radiol) Vol. 47 Issue 6 Pg. 568-73 (Jul 2006) ISSN: 0284-1851 [Print] England
• PMID: 16875334 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Topics

• Aged
• Anthropometry
• Back Pain (diagnostic imaging, surgery)
• Female
• Follow-Up Studies
• Humans
• Kyphosis (diagnostic imaging, surgery)
• Male
• Orthopedic Procedures
• Osteonecrosis (diagnostic imaging, surgery)
• Osteoporosis (diagnostic imaging, surgery)
• Pain Measurement
• Radiography
• Retrospective Studies
• Spinal Diseases (diagnostic imaging, surgery)
• Spinal Fractures (diagnostic imaging, surgery)
• Spine (diagnostic imaging, surgery)